Process for the preparation of rufinamide
    7.
    发明授权
    Process for the preparation of rufinamide 有权
    制备rufinamide的方法

    公开(公告)号:US08183269B2

    公开(公告)日:2012-05-22

    申请号:US13063440

    申请日:2009-10-09

    IPC分类号: A61K31/41 C07D249/00

    CPC分类号: C07D249/04

    摘要: The present invention relates to a process for the preparation of rufinamide of formula I, which process comprises: (i) reacting a 2,6-difluorobenzylhalide of formula II, wherein X is chloride, bromide or iodide, with an azide to obtain 2-(azidomethyl)-1,3-difluorobenzene of formula III; (ii) reacting 2-(azidomethyl)-1,3-difluorobenzene of formula III with methyl propiolate to obtain methyl 1-(2,6-difluorobenzyl)-1H-1,2,3-triazole-4-carboxylate of formula IV; and (iii) reacting methyl 1-(2,6-difluorobenzyl)-1H-1,2,3-triazole-4-carboxylate of formula IV with ammonia to obtain rufinamide of formula I.

    摘要翻译: 本发明涉及一种制备式I的呋喃酰胺的方法,该方法包括:(ⅰ)将式Ⅱ的2,6-二氟苄基卤,其中X为氯化物,溴化物或碘化物与叠氮化物反应,得到2- (叠氮甲基)-1,3-二氟苯; (ii)使式III的2-(叠氮基甲基)-1,3-二氟苯与丙炔酸甲酯反应,得到式IV的1-(2,6-二氟苄基)-1H-1,2,3-三唑-4-羧酸甲酯 ; 和(iii)使式IV的1-(2,6-二氟苄基)-1H-1,2,3-三唑-4-羧酸甲酯与氨反应,得到式I的呋喃酰胺。